Build-A-Trapper Every quality knife needs a quality Wooden Trapper Kit to go with it. Made by W.R. Case & Sons Cutlery Co., this Build-It Wooden Trapper Kit was developed with the true knife enthusiast in mind. It is 4 1/8"L X 3/4"W X 1/2"H and made of well-crafted Hardwood. This wooden knife kit comes complete with all the wooden pieces, steel pins, and instructions to build your own Case knife. No tools required.